Lubricating device



Fell). 19 1924.

I J. W. GRANTLAND LUBRICATING' l DEVICE Fil'ed March 4. 1.922 2 Sheets-Sheet 1 Feb. 19 1924.

J. W. GRANTLAND,

LUBRICATING DEVICE Filed March 4, 1922 2 SheetsSheet 2 v gwvgzntoz.;

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dummy Patented Feb. 19, 1924.

UNITED STATES JOHN WALTER GRANTLAND, OF CINCINNATI, OHIO.

LUBRICATING pEvIcE.

Application led March 4, 1922. Serial No. 541,188.

To whom it may concern:

Be it known that I, JOHN WALTER GRANT- LAND, a citizen of the United States. and r'esiding at Cincinnati. in the county of Hamilton and State'of Ohio, have invented a new and useful Improvement in Lubricating .Devices, of which the following specification is a full disclosure.

This invention relates to a device for forcibly delivering lubricant into locomotive engine cylinders, in measured quantity, approximately proportionate to the distance of locomotivetravel.

An object of the invention is the provision of means for positively, regularly and forcibly introducing definite quantities of lubri- 'cant into an engine cylinder, against steam pressure.

The invention is mainly directed to the structure and operation'of a combined valve and piston, attached within an oil reservoir and positively operable for pumping oil into the steam pipe adjacent the cylinder, through means connected with and movable by a locomotive driving gear.

' Other objects and certain advantages will be disclosed in the description of the drawings, in which:

Figure 1 is a central section through the lubricating device, which is operated to deliver lubricant directly into the steam p Fig. 2 is asectional elevation at right an les to Fig. 1.

ig. 3 is a fragmentary side elevation of a locomotive showing my lubricating system installed thereon.

Figs. 4 and 5 are detail views showing the operation of the valve actuating ratchet mechanism.

The invention herein is principally directed to an apparatus for forcibly delivering ameas'uredquantity of lubricant to the engine cylinder of a locomotive in timed periods or frequency, while the engine is in operation, the structural Vdetails of the mechanism employed forming theprincipal feature thereo The present invention employs a mechanitached preferably to the running board .of the locomotive, with itsl reservoir in communication with the steam pipe, between the boiler and steam chest, the device being accally operated lubricant delivery device atcessble for illing and adjustment by the attendants while the locomotive is running.

The lubricant conveyor is connected to the steam pipe, in such a manner, that a measured quantity of lubricant is delivered and distributed therewithin, mixed with steam and carried to the cylinder, at definite periods, conformably to engine requirements, calculated upon a mileage basis. This method of delivery, supplies the cylinder with the proper amount of lubricant while in operation, and also provides means for an approximateA computation of the amount of oil required for a given run. This, in railroad service, is an lmportant factor, inasmuch as the oil requisition is on a mileage basis. It insures the provision of a suilicie'nt oil supply before starting on a given run, and regulates the amount periodically supplied, to the engine cylinder.

The reservoir 1, of the oil delivery unit may be of any preferred form, and is herein shown as of rectangular configuration.

Bearings for reciprocatory pump and valve elements, and forY an eccentric o erat-l ing shaft for the same, are provide the central axes of which are disposed in planes at right angles to each other, intersecting at the center of figure of the rservoir. The.'

and valve operating shaft eccentric, pum

orizontally andl centrally of 2, is disposed the reservoir, in aligned tubular bearings- 3, 4, the bearing 3 being formed integrally therewith, projecting Within and Without the reservoir Walls, and being -of a Idiameter greater than the shaft, except adjacent its inner end, at which it supports the shaft for rotation.

The bearing 4 has the form of a closure cap providing a tubular eztension 5, projecting into the reservoir, within which extension one end of the shaft is free to rotate. The bearing 4 has screw-threaded engagement with the reservoir wall,`and is provided With a suitable wrench projection.

The eccentric, indicated atG, .is formed as an integral part of the shaft 2, and is positioned midway between the side walls of the reservoir. The shaft 2 -beyond the.

bearing 3 has a squared extension 7 and beyond this squared extension a short threaded extension 8. The outer projecting lOl' portion of thev bearing 3 is threaded foren# l gagement by a bearing cap-9 providing ai 4 circular recess 10 at its outer side designed to house the rollers of a ratchet device for rotating shaft 2, which device is hereinafter described in detail. i

The outer end of the shaft 2, is supported in the bearing opening 11 of the cap 9. Packing 12 surrounds the shaft'within the bearing 3, and gland 13 is forced thereagainst by a Vspring 14 surrounding said shaft and compressed between said gland and cap. 'A

The eccentric 6 is designed to traverse a rectangular oke or frame element 15, and to engage t e interior horizontal parallel faces thereof, for raising and lowering the same. rl`he yoke \is provided' with upper and lower centrally disposed aligned cylindrical guide extensions 16, 17, the central axes of which intersect the axis of the eccen-v tric shaft 2 at thel center of figure of the reservoir. The upper extension 16 is integral with the yoke and is slidably supported at its upper end in a spider 18, placed across a recess of a screw plug 19, in threaded engagement with the opening of the upper wall of the reservoir, which opening is of sufficient size to allow for the introduction or removal of the yoke or for making adjustment or repairs ofthe mechanism within the reservoir. A liquid filling opening in the plug 19 is closed by a suitable screw cap 20.

The lower end of theextension or valve stem 17 is provided with a conical valve 25, which is designed to cooperate with a valve seat at. the upper end ot a hollow or tubular plunger 40, to control the iow of oil thereto, said valve 25 further cooperating to cap or close. and reciprocate the plunger for forcibly delivering definite charges of oil. The structure of the combined oil charge-measuring si and charge-pumping' mechanism is as follows: l

Within a threaded opening in the bottom of the reservoir, axially. aligned with' and of the same diameter as the upper opening, is screwed a'plug 30 having a lower exterior tubular extension 31l and an upper interior tubularorI cylindrical extension 32. The upper extension provides a cylindrical bore 33, the wall of said extension having a plurality of diametrically disposed openings 34 therethrough. Against the outer periphery of the extension covering said material therethrough.

opening is placed a strainer gauze 35 designed to prevent the entrance of foreign a within the bore as is iidabiy disposed a block or plunger head 36 havinga central passage 37, therethrough, counterbored at 38. The plunger head is further provided -with radial passages 37a communicating with the passage .37 at the bottom of the .counter-bore 38 and adjacent the valve 25.

The lbwer end of the passage 37 is threaded Maasai tubular plunger 40 extending downwardly' and within the, bore 41 of' the lower extension 31. rl`he upper periphery of the tubular plunger 40 provides a valve seat engageable by the valve 25 slidablewithin` the counter-bore 38, the stem 17 of the valve traversing a threaded plug 38a engaged in the top of said bore, the upper end of the stem having threaded engagement with the yoke. 'llhe valve 25 has only a limited movement between its seat and the lower end of the plug 38a, so that when the eccentric has moved from its initial ppsition through a relatively small arc of rotation, the valve is unseated and, in its continued upward movement, engages the lower end4 tric travels through 180 or one-half of its cycle of rotation. During the upward stroke or movement of the hollow plunger` a chargeof oil is admitted at its to-p, either to replace that amount of oil previously forced from the lower portion of the pump cylinder or to fill said cylinder, as inthe initial operation of the device. rlhe yoil flows from the reservoir through openings 34 and passage 37, in said hollow plunger. This 11p-stroke of the plunger maybe said to correspond to a suction-stroke, although, as a matter of fact, gravity alone acts to replace the oil previously expelled by the down-stroke of the' plunger.

The hollow plunger 40 operates within a pump cylinder conduit 40 formed by a tubular bushing v43, having threaded engage ment at its lower end with the bore 41 of the extension 31.v Packing 41a surrounds the plunger 40 above the bushing 43 to prevent the back iiow of oil into the borev 33. The bushing 43, adjacent its lower end, has radial passages 44 communicating wit'han interior annular groove '45 in the-bore 41. The groove 45 communicates, through an opening 46, with the interior of a socket' 47 Ivided with a central bore 49 communicating with the socket 47 and opening 46, and at right angles tothe axis of said bore is disposed a springpressed check valve 50 slidable in a removable bushing 50, and normally seated to close a passage 51, communicating with bore 49 and with passage 52, which passa e 52 in turn 'connects with the passage 53 o a pipe 54 attached'by union 55 to the end of the connection 48, said pipe 54 being attached to and in communication with the interior of the steam pipe 56. rlhe hollow plunger 40, cylinder 40a, passages 44, groove 45, opening 46, socket 47, and` passages 49 and 51, together form what may be considered :1J/continuous discharge chamber :formed upon the extension 31, into which iso orconduit between the valve and the check valve 50, which chamber is filled with oil when the valve 25 is open and while the plunger 40 rises. During the first part of the last half of the cycle of rotation of the eccentric 6, that is, on its down-stroke, the

valve 25 is seated to prevent further flow of chamber 40a, and providing a liquid-tight fit therebetween. l The packing 41 surrounding the plunger in the bore 41, is compressed between the end wall thereof and the end of the bushing 43, to additionally pack the plunger against leakage. As shown in Fig. 1, the valve and plunger are` at their limit of downward movement. The lower conical surface of the valve acting as a piston head to discharge the oil from the chamber. The length of plunger stroke determines the amount of charge admitted and expelled, and this length may be varied by correspondingly changing the degreel of eccentricity of the eccentric4 6. The hollow formation of the 4plunger 40 practically eliminates the l effect of back pressure, which would tend to move the plunger upwardly, practically all of such pressure or` thrust being received by the valve 25, whichY is positively held against upward movement by the yoke and eccentric.

The eccentric shaft 2 is intermittently rotated by ratchet mechanism, a preferred form of which is herein shown as of roller friction type, a dependable means for converting reciprocatory intorotary motion. It

. .is obvious, however, that various types of mechanism may be employed for rotating' the shaft 2. The ratchet mechanism herein disclosed, comprises a pair of ratchet wheels 60, 61, mounted non-rotatively` upon the squared extension 7 of the eccentric shaft 2. The ratchet wheel '.61 is housed within the recess lO of the cap 9, while the ratchet wheel is housed within the recessed hub '63 of the actuator arm 64, said-hub being .the ratchet wheel and bearing cap 9 together for locking the shaft against reverse rotative oranti-clockwise movement, the shaft in this instance being frictionally clamped to the valve body through the cap 9. A series of rollers are disposed between the ratchet 60 and the inner circular bearing surface of the hub 63, for frictionally clamping and rotatively connecting the hub and ratchet wheel, for rotatin the` shaft 2 when the arm 64 is oscillate in a forward direction, which causes the rollers to engage between the hub bearing surface and the ratchet wheel, binding the two parts together and releasing the same in a reverse movement of the arm. The hub 63 forms .a closure for the recess 10, housing and confining the rollers for the ratchet Wheel 61, and cap plate 60a fixed to the hub 63 by screws 64a, provides a closure for the rollers 70 cooperating with the ratchet wheel 60, and confines the said rollers within the hub. The ratchet actuator-arm 64 connects with one end ofa link 72. 'Ihe opposite end of the link 72 is pivoted to a lever 73 hingedly supported, in this instance, beneath the locomotive running-board. The lever 73 is pivoted with one end of a link 74, the opposite end of the link rigidly connecting with one arm of a lever 75 pivoted as at 76 to a bracket 77 ,The opposite arm of the lever 75 is pivoted provides a definite timing means for the distribution and the feeding of the lubricant. The approximate calculation as to the quantity of lubricant required for a known mileage run can be made, which is'of material advantage in railroad service where-requisitions foroil are issued on mileage basis.

The lever 72 is provided with a series of apertures 73u for adjustably connecting the lever 64 with said lever, to change throw or 4stroke of the arm lever for the adjustment of the speed of rotatign of the eccentric shaft 2.

It is'obvious that the arm 64 may be con nected to other moving parts ofthe locomotive or engine, although its connection with one of the drivel wheels is preferable and more convenient, since a more definite basis .for computing the approximate consumption of lubricant per mile is furnished.

Having described my invention, I claim: 1. In a force-feed lubricator, a reservoir, a delivery conduit attached thereto, a reciplrocable hollow plungerconnecting said reservoir and conduit, a reciprocating valve seating at one end of saidvplunger for -controllingthe lubricant supply thereto, in one stroke of said plunger, and for providing a closure and plunger head in a reverse stroke for forcing a charge of lubricant through said condult.

2. ln a pressure lubricating device, a reseryoir, a liquid .discharge conduit attached thereto, a hollow plunger slidable in said conduit for establishing communication between said conduit and reservoir, a valve co- -operable with the end of said plunger for respectively opening and raising, and closing and depressing the plunger, for charging said conduit and forcing a charge therefrom. i v

3. l[n a pressure liquid-delivery apparatus, a reservoirproviding a plunger and delivery conduit, a tubular plunger reciprocable in said conduit for establishing communication between said reservoir and con- -duit, a lvalve connected with said plunger, reciprocable with respect thereto, and seating thereagainst, for respectively opening and raisin and closing and depressing the plunger, lling said conduit and forcing Yliquid therefrom.

4. In a force-feed lubricator, a reservoir valve, a discharge conduit attached thereto, providing an outwardly-opening check valve therein, aA hollow plunger reciprocable in said conduit, for connecting said reservoir and conduit, a valve ,attached to said plan er, reciprocable with respect thereto, or c osing and depressing said plunger, and for opening and raising the same, and intermittently rotatable means cooperating with said valve for a timed reciprocation of the same. v

5. ln a force-feed lubricator, a reservoir having a discharge conduit removably attached thereto, a hollow plunger reci rocable in said conduit and roviding a cy indrical head having ports t erein, said lunger and ports providlng co t unication etween said reservoir and conduit, a valve attached to said cylindrical head, and reciprocable with respect thereto, for respectively closing and depressing `said pluner, and opening n and raising the same, t means intermit- Maasai tently rotatable, cooperating with said valve for reciprocating the same.

6. lln a force feed lubricator, a reservoir having a valve cont olled conduit attached thereto, a hollow plunger providing ahead having ports therein, said plunger reciprocable 1n said conduit, andA said plunger and ports providing communication betweensaid reservoir and conduit, a Valve reciprocably attached to and within said head, adjacent said ports, and cooperable with said conduit, for respectively opening said plunger and raisin said head and plunger, and closin said p unger and depressing saidhead an plunger. g

7. In a force feed lubricator, a casing roviding a reservoir, plunger cylinder and) delivery chamber, a reciprocable open ended tubular plunger connecting said reservoir and oil delivery chamber, a valve loosely connecting with said plunger to provide a closure and head for the inlet end thereof, said valve in one stroke of said plunger connecting the plunger inlet end, for admitting oil to said delivery chamber, and seating the same in a reverse stroke for forcing the oil from said delive chamber, and means for reciprocating sai valve and plunger. Y

8. ln a force feed lubricator, an oil supply reservoir, an oil delivery conduit, a reciprccable open ended tubular plunger connecting said reservoir and delivery conduit, a valve roviding a closure and head for the inlet 1S plunger in one stro e for openin said plunger to the reservoir for admittlng oil into and through the plunger and in a reverse stroke closing said plunger and forcibly discharing o1l through said delivery conduit, an means for reciprocating said plunger and valves.'

lin witness whereof, ll hereunto subscribe my name, as attested by the two subscribing witnesses..

Jona waarna enaNfrLaNn.

Witnesses:

FRANCIS E. man, JEANNE Henner..

of said plun er, operable with said 

